KR20050021113A - Camera For Colsed Circuit System - Google Patents

Abstract

PURPOSE: A monitoring camera for a closed circuit system is provided to prevent picture quality and durability of the monitoring camera from being deteriorated due to physical shocks or vibrations by securely fixing a board set inside the case of the camera. CONSTITUTION: A monitoring camera for a closed circuit system includes a case(2), a lens unit(4) located inside the case to induce an image of an object, a board(6) on which an element for converting the image of the object into a current signal, and a fixing member(8) for fixing the board to the case. The fixing member is composed of fixing parts(24,26) for fixing the board in at least two directions.

Description

Surveillance Camera for Closed Circuit System {Camera For Colsed Circuit System}

The present invention relates to a surveillance camera for a closed circuit system, and more particularly, to a closed circuit system in a security field, and for a closed circuit system that can prevent degradation of durability and image quality due to external physical shock or vibration. It is about surveillance camera.

In general, CCTV (Closed Circuit Television) is classified into an Open Circuit System and a Closed Circuit System, and the Open Circuit System is an example of providing general video information to an unspecified number of people. This is the field, and the closed-loop system is widely used in the security field, for example, for transmitting image information to a specific person for a specific purpose.

In the above, the closed-loop system is mainly to monitor specific areas requiring security maintenance in commercial buildings such as banks, shopping malls, parking lots, and industrial facilities such as factories and dams, and in recent years, traffic control fields, personal methods and disaster prevention fields. It is also widely used in Edo.

The closed loop system includes a solid state image pickup device camera for converting light reflected from a subject into a current intensity, an image signal converter for converting a signal of the camera into an image signal, and a display device for displaying an image signal transmitted through the converter. It consists of so that you can monitor several areas in one place.

In the above, the camera is manufactured in various sizes and shapes according to its function and use, and is fixedly installed on a ceiling or a wall of a building to monitor a security area.

The general structure of the camera is composed of a case, a lens unit provided on a passageway through which the image of the subject is incident, and a substrate provided with elements for converting the image of the subject passing through the lens unit into a current intensity. The image signal is transmitted to the display device such as a monitor through the elements of the substrate to display an image.

When the substrate is installed inside the case, for example, only one side of the substrate is fixed to one side of the case to prevent the terminal parts of the surface from contacting with a metal material or the like to prevent electrical damage and malfunction.

However, the conventional surveillance camera has a structure in which a substrate is fixed by simply fitting to one side of the case, and thus the posture is shaken by physical shock or vibration, for example, causing irregular connection or electrical short of the connection terminals. There is a problem. In addition, when these problems are caused, not only the life of the substrate is shortened, but also frequent maintenance is inevitable and becomes a factor that degrades the display state.

The present invention has been made to solve the conventional problems as described above, the object of the present invention is to provide a surveillance camera for a closed circuit system that can prevent the degradation of image quality and durability even in physical shock or vibration, etc. have.

In order to realize the object of the present invention as described above, a case, a lens unit for inducing the image of the subject incident inside the case, and an element for converting the image of the subject passing through the lens unit into the intensity of the current A substrate provided with a fixing member for fixing the substrate to the case,

The fixing member provides a surveillance camera for a closed circuit system comprising fasteners for fixing the substrate in two or more directions by fitting force or elastic force.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in more detail.

1 to 3, the surveillance camera for a closed loop system according to the present invention includes a case 2, a lens unit 4 which guides an image of an incident object located inside the case 2, And a substrate 6 provided with an element for converting an image of the subject passing through the lens portion 4 into an electric current intensity, and a fixing member 8 for fixing the substrate 6 to the case 2. .

The case 2 is provided with a space portion 10 of a predetermined region therein as shown in Figure 2 so that the lens unit 4, the substrate 6, the fixing member 8, etc., which will be described later, may be installed. The space portion 10 is dug into a cylindrical shape with one side open as shown in the figure.

The material of the case 2 is manufactured by selecting a material having excellent corrosion resistance and durability from metal or synthetic resin.

The case 2 may be fixed to a predetermined installation place, for example, a separate fixing bracket 12 as shown in FIG. 1 on a ceiling or a wall of a building.

In addition, the upper portion of the case 2 has the shape as shown in the figure so as to protect the case 2 from rain or the like during the external installation and the lens unit 4 to be described later to block back light generated by sunlight or the like. A shade 14 may be installed.

The case 2 is provided with a cap 16 so as to block and open the opening side of the space 10, the cap 16 is made of the same material as the case 2 and the space 10 ) It is detachably installed by fitting or screwing on the opening side. At this time, the cap 16 is fitted with a conventional rubber ring 18 as shown in Figure 2 so as to improve the sealing force after being fitted to the case (2).

As shown in FIG. 2, the lens unit 4 is fixed to the through hole 20 which is stepped at one end of the space part 10 of the case 2, and is fixed in the same posture as shown in FIG. 2. It is provided with a transparent cover 22 to protect the lens unit (4).

For example, the lens unit 4 may use a solid-state imaging lens for detecting light reflected from a subject in a surveillance area, and the lens 4 has a conventional structure that is already widely used in a surveillance camera. Omit.

The substrate 6 corresponds to the lens unit 4, and a sensor S capable of converting an image of a subject induced in the lens unit 4 to a current intensity and transferring the image to a display device. They are made of a conventional circuit board structure provided with a rectangular shape as shown in Figs. 1 and 2 and positioned in a horizontal position on the case (2) space 10.

On the other hand, the substrate 6 is firmly fixed to the posture as shown in Figure 2 in the space portion 10 of the case 2 by the fixing member (8). In the present embodiment, the fixing member 8 is composed of a horizontal fastener 24 and a vertical fastener 26 fixed in two directions, ie, in a transverse direction and a longitudinal direction, based on the surface of the substrate 6. It is shown as an example.

The lateral stopper 24 is manufactured in a disc shape corresponding to the inner circumferential surface of the space part 10 of the case 2, as shown in Figs. 2 and 3 so that both sides of the substrate 6 can be fixed, respectively. The dog consists of one set.

The material of the lateral stopper 24 is made of a synthetic resin material which does not cause any scratch when it comes in contact with the substrate 6, and is fitted to both side ends of the substrate 6 in a posture as shown in FIG. . At this time, a fixing hole (H) is formed at the center of the lateral fixing tool (24), and fixing protrusions (H1) corresponding to the fixing hole (H) are formed at both ends of the substrate (6) so that they are fitted together. Structure.

In addition, the lateral stopper 24 positioned at the side of the lens unit 4 has a structure in which a central portion is drilled into a predetermined region so that the sensor S of the substrate 2 can be secured as shown in FIG. 2. At this time, the fixing hole (H) and the fixing protrusion (H1) formed in the one side lateral fixture 24 and the substrate 6 is formed in the area outside the sensor (S) as shown in Figure 3 to be fitted do.

The fixing hole (H) size of the lateral fixing tool 24 is formed in the range that does not occur after the fixing protrusion (H1) of the substrate 6 is smoothly fitted and the fixing protrusion (H1) is fitted, As shown in FIG. 2, one side fastener 24 is set to contact the stepped sidewall surface of the space part 10 and the through hole 20 in the case 2.

The longitudinal stopper 26 is positioned in such a manner as to be able to contact one end of the substrate 6 as shown in FIG. 2 to fix the substrate 6 in the longitudinal direction inside the case 2. In the present embodiment, the longitudinal stopper 26 is shown to be used, for example, an "E" shaped stop ring which is fitted to the inner circumferential surface of the groove to be installed for fixing the shaft or the like.

The structure of the stopper 26, that is, the stop ring is briefly described with reference to FIGS. 2 and 3, and a portion of the circumferential edge is opened, and an extension portion protruding toward the center portion is formed at one edge portion. (26a) was formed.

The vertical fixture 26 is fixed to the outer circumferential surface is fitted into the ring groove 28, which is dug into the space portion 10 of the case (2) as shown in FIG. The fastening method of the longitudinal stopper 26 may be fixed by a conventional ring fixing tool T such that the edge of the longitudinal stopper 26 may be closed toward the center portion (see FIG. 3).

In the above description, although the conventional stop ring in which the vertical stopper 26 is standardized is used as an example in the description and drawings, the ring having the above structure may be manufactured and installed directly with a metal or a synthetic resin material.

When the longitudinal stopper 26 is fitted into the ring groove 28 as shown in FIG. 2 in the case 2, the extension part 26a has a constant elastic force at one end of the substrate 6. It should be set to have contact with. At this time, the direction in which the elastic force of the extension part 26a acts is made so as to push the substrate 6 to the left side based on FIG. 2.

In addition, a cable C is connected to the substrate 6 so that a detection signal of the lens unit 4 can be transmitted to a display device, and the cable C is connected to the lateral fixture as shown in FIGS. 2 and 3. 24 and the cap 14 of the case 2 so as to be wired to the outside.

As described above, when the substrate 6 is fixed to the space part 10 of the case 2 in two directions by the fixing member 8, that is, the horizontal fixing tool 24 and the vertical fixing tool 26, physical shock or vibration may occur. Also, since it is firmly fixed without any flow, durability and image quality deterioration due to shaking of the substrate 6 can be prevented.

In the above embodiment, the stopper 26 of the fixing member 8 is used as a stop ring for fixing the substrate 6 in the longitudinal direction. .

For example, as shown in FIG. 4, an elastic member such as a compression coil spring may be used as the longitudinal stopper 26, and the longitudinal stopper 26 is one side lateral stopper 24 in the space part 10 of the case 2. ) And the cap 14 are positioned in the same posture as shown in the drawing and set so as to press the one side lateral stopper 24 by an elastic force to fix the substrate 6.

In addition to the compression coil spring, for example, a leaf spring may be used as the longitudinal stopper 26, as shown in FIG. At this time, the elastic force of the leaf spring should be set to press one end of the substrate 6 as shown in the drawing or to press the surface of the one side lateral fixture 26 although not shown in the drawing.

In the above description of the preferred embodiment of the surveillance camera for a closed-loop system according to the present invention, the present invention is not limited to this, but the present invention is not limited to the claims and the detailed description of the invention and various modifications are carried out within the scope of the accompanying drawings. It is possible and this also belongs to the scope of the present invention.

As described above, the surveillance camera for a closed circuit system according to the present invention can be firmly fixed to the substrate installed inside the case in one or more directions, that is, in the transverse direction and the longitudinal direction, respectively, by a fixing member. It is possible to prevent the substrate from being shaken due to vibration or the like, thereby degrading durability and image quality.

In addition, the fixing member is a structure to simply fix the substrate by the coupling force and the elastic force, so that the fixing structure is not only simple, it is possible to ensure more improved fixing force.

1 is an overall perspective view of a surveillance camera for a closed circuit system according to the present invention.

Figure 2 is a cross-sectional view showing the internal structure of the surveillance camera for a closed circuit system according to the present invention.

3 is a partially exploded perspective view for explaining the structure of the fixing member of the surveillance camera for a closed circuit system according to the present invention.

4 is a partially enlarged cross-sectional view illustrating another embodiment of the fixing member of FIG. 2.

5 is a partially enlarged cross-sectional view illustrating another embodiment of the fixing member of FIG. 2.

Claims (3)

A case having a case, a lens unit positioned inside the case to guide an image of an incident object, a substrate for converting an image of the subject having passed through the lens unit into an intensity of current, and fixing the substrate to the case. It includes a fixing member, The fixing member is a surveillance camera for a closed circuit system consisting of fasteners for fixing the substrate in two or more directions by the coupling force or elastic force in the case. The surveillance camera of claim 1, wherein the fitting coupling fixture is fitted to the substrate, the protrusions and the grooves, and one or more of the fitting coupling fixtures are positioned on the substrate. The surveillance camera of claim 1, wherein the elastic fastener comprises one of a stop ring, a compression coil spring, and a leaf spring, and is set in a position capable of fixing the substrate or the fitting coupling fixture to the elastic force in the case.